THE EFFECTS OF ADJACENT BRACES ON THE STATIC STRENGTH OF A CORNER YT JOINT

Forty corner TY joints have been manufactured from a tin-lead alloy model material. They have been tested in compression, tension, out-of-plane and in-plane bending of a single brace or simultaneously of two adjacent braces. All of the tin-lead alloy models had the same shape; the T-brace axes were at 90o to the chord axis and the Y-brace axes were at 45o to the chord axes; the diameter to thickness ratio for the chord was 18.4; the ratio of the brace diameters (all the same) to the chord diameter was 0.5; the thicknesses of the braces and chord were the same; the axial spacings between the braces were 0.18 x the chord diameter; the braces were 0.26 x the chord diameter. The results of the 12 tests of loading a 90o brace or a 45o brace alone in six loading modes (compression, tension and bending towards and sway from the two adjacent braces) were compared with the strength of T and Y joints. There were no significant differences except for in-plane bending of a 90o or a 45o brace, away from the other, where the strength was reduced by the presence of the unloaded brace. YT type loading (i.e. simultaneous loading of a 90o brace and the adjacent 45o brace showed that the load in the adjacent brace could reduce the strength by up to 50% or increase it by up to 40%, depending on the ratio of the loads. Corner loading (i.e. simultaneous loading of braces in both axial planes) of two adjacent 90o braces also produces significant changes of strength.

  • Supplemental Notes:
    • Proc Instn Civil Engrs, Structures and Buildings, v 116 n 1, Feb 1996, p 44 [10 p, 19 ref, 3 tab, 10 fig]
  • Authors:
    • Fessler, H
    • Hyde, T H
    • Khalid, Y A
  • Publication Date: 1996

Language

  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00728302
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Nov 4 1996 12:00AM